CVE-2023-33553

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to bypass authentication on Planet Technologies WDRT-1800AX routers by manipulating the LoginStatus cookie, enabling unauthorized root access. It affects organizations using WDRT-1800AX routers with vulnerable firmware, potentially exposing network infrastructure to complete compromise.

💻 Affected Systems

Products:
  • Planet Technologies WDRT-1800AX
Versions: v1.01-CP21
Operating Systems: Embedded router firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the web management interface of the router. All devices running this firmware version are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete network compromise with attacker gaining root access to router, enabling traffic interception, network pivoting, and persistent backdoor installation.

🟠

Likely Case

Unauthorized administrative access to router configuration, allowing network reconnaissance, DNS manipulation, and credential harvesting.

🟢

If Mitigated

Limited impact with proper network segmentation and monitoring, though authentication bypass remains possible.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires network access to the router's web interface and cookie manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

Check Planet Technologies website for firmware updates. If available, download and apply through web interface.

🔧 Temporary Workarounds

Restrict Web Interface Access

all

Limit access to router web management interface to trusted IP addresses only.

Configure firewall rules to restrict access to router management IP/port

Disable Remote Management

all

Disable web management interface from WAN/external interfaces.

Access router settings > Administration > Remote Management > Disable

🧯 If You Can't Patch

  • Segment router management interface to isolated VLAN
  • Implement strict network monitoring for unauthorized access attempts

🔍 How to Verify

Check if Vulnerable:

Check firmware version in router web interface. If version is v1.01-CP21, device is vulnerable.

Check Version:

Login to router web interface and check System Status or About page

Verify Fix Applied:

Verify firmware version has been updated to a version later than v1.01-CP21.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized login attempts
  • Cookie manipulation in web logs
  • Unexpected administrative access

Network Indicators:

  • Unusual traffic patterns from router
  • Unexpected outbound connections from router

SIEM Query:

source="router_logs" AND (event="authentication_failure" OR cookie="LoginStatus")

🔗 References

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